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ENVIRONMENTAL TECHNOLOGY VERIFICATION REPORT - PHYSICAL REMOVAL OF PARTICULATE CONTAMINANTS IN DRINKING WATER, AQUASOURCE M1A35 ULTRAFILTRATION MEMBRANE SYSTEM AT AQUA2000 RESEARCH CENTER - NSF 00/03/EPADW395
Citation:
NSF International. ENVIRONMENTAL TECHNOLOGY VERIFICATION REPORT - PHYSICAL REMOVAL OF PARTICULATE CONTAMINANTS IN DRINKING WATER, AQUASOURCE M1A35 ULTRAFILTRATION MEMBRANE SYSTEM AT AQUA2000 RESEARCH CENTER - NSF 00/03/EPADW395. U.S. Environmental Protection Agency, Washington, DC, EPA/600/R-03/015, 2000.
Description:
Verification testing of the Aquasource UF unit ws conducted over two test periods at the Aqua2000 Research Center in San Diego, CA. The first test period, from 3/5 - 4/19/99, represented winter/spring conditons. The second test period, from 8/25 - 9/28/99, represented summer/fall conditions. The source water was a blend of Colorado River and State Project Water. Verification testing was conducted at manufcturer specified operating conditions. The membrane unit was operated at a constant flux of 60 gfd (100 L/hr-m(2)) with feedwater recoveries ranging from 88-94%, depending on the backwash frequency. During Test Period 1, membrane fouling due to algae bloom was observed towards the end of the operating period. During Test period 2, the system ran without any noticeable loss of specific flux. The manufacturer recommended cleaning procedure was effective in recovering membrane productivity. The membrane system achieved significant removal of particulate contaminants and bacteria.